#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>  
#include <unistd.h>
 
#include <string>
#include <iostream>
#include <iomanip>
#include <vector>
#include <iterator>

#include "JLang/JFileStream.hh"

#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"


/**
 * \file
 *
 * Example program to test JLANG::JFileStream class.
 * \author mdejong
 */
int main(int argc, char **argv)
{
  using namespace std;
  using namespace JPP;

  string  file_name = "test_file.txt";
  int     debug;

  try {

    JParser<> zap("Example program to test file streaming.");

    zap['f'] = make_field(file_name)   = "test_file.txt";
    zap['d'] = make_field(debug)       = 3;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }


  vector<string> data_in;

  data_in.push_back("hello");
  data_in.push_back("world");

  {
    int fd = open(file_name.c_str(), O_RDWR | O_CREAT | O_TRUNC, 0666);

    ASSERT(fd != -1);

    JFileOutputStream os(fd);

    for (vector<string>::const_iterator i = data_in.begin(); i != data_in.end(); ++i) {
      os << *i << endl;
    }

    close(fd);
  }

  vector<string> data_out;

  {
    int fd = open(file_name.c_str(), O_RDWR);

    ASSERT(fd != -1);

    JFileInputStream is(fd);

    for (string buffer; getline(is,buffer); ) {
      data_out.push_back(buffer);
    }

    close(fd);
  }

  if (debug >= debug_t) {
    cout << "data_in  "; copy(data_in .begin(), data_in .end(), ostream_iterator<string>(cout, " ")); cout << endl;
    cout << "data_out "; copy(data_out.begin(), data_out.end(), ostream_iterator<string>(cout, " ")); cout << endl;
  }

  ASSERT(data_in == data_out);

  return 0;
}